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河北省邢台市第七中学高二英语选修六导学案:Unit 4 Global Warming 2

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                          Unit 4 Global Warming 

    年级        科目       章节          课型           课时      主备人       审核

                              Warming up and 
    高二        英语      Unit 4                   3 课时       张瑜
                                  Reading  
【学习目标】
     1. Help students grasp new words and phrases.
     2. Help to develop students’ reading skills.
【重点难点】

     1. 掌握文中重点词汇和重难点句。
     2. 了解全球变暖和气候的关系,树立环保意识
【学习方法】

  自主学习     合作探究
【学习过程】
一.预习自测

1.当被拿来与. . . . . .作比较________________   
2. 发生,产生__________________________
3.毫无疑问_______________________________  
4.无规律的自然现象_____________________
5.同意这个观点___________________________  
6.由于燃烧化石燃料_____________________
7.温室效应_______________________________  
8.少量的_______________________________
9.大量的_________________________________  
10.趋于________________________________
二.合作探究

Task 1. Skimming
Divide the passage into 4 parts and match the paragraphs and the main ideas.
Part1   para___ to para____    Different attitudes among scientists towards 
                   中国现代教育网    www.30edu.com  全国最大教师交流平台

global warming
Part2    para___ to  para___       It’s  up  to readers to think  and decide 
                                whether  people  should do  something  about 
                                global warming.
Part3   para___ to para____    How global warming comes about
Part4   para___ to para____     A general introduction to global warming 
B.  The passage  mainly introduces  the _____________of  global warming  and 
   scientists’ different __  ________ towards it. 
Task 2. Careful reading
A: Read part 1 and answer the following questions:
1. What is the purpose of the first 
   paragraph?______________________________________
2. What is the graph for?                
   ______________________________________
B: Read part 2 and answer the following questions:
What  is  the commonly  accepted reason  for  the increase  in the  earth’s 
   temperature?
What is “greenhouse effect”?
Decide whether the sentences are true or not.
①   Everyone believes  that global warming  is caused  by the activities  of 
humans.      (   )
②   Janice Foster believes that she  can measure the future  global increase 
in temperature.(   )
③   The amount of  carbon dioxide in  the atmosphere from  1957 to  1997 was 
   measured accurately.          (   )
④ Greenhouse gases are harmful to human beings and we should try our best 
   to rid the world of them.    (   )
C: Read part 3 and answer the following questions:
1.  What are the different attitudes towards global warming?
2.  According to some scientists like George Hambley, __________
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    A. global warning is a disaster         
    B.  there will  be the  disappearance of  species  as a  result of  high 
   levels of global warming.
    C. More carbon dioxide will do a lot of good .
    D He is worried about high levels of carbon dioxide
3.解难答疑
1.【教材原句】           It is  a rapid  increase when  compared to other  natural 

   changes.
【结构归纳】句中         when compared to other natural changes 为 _____________ 句,
完整表达为 ___________________________________________.
【操练巩固】

(1)  Generally speaking,  _______________according to  directions, the  drug 
   has no side effect. (take)        
   一般说来,如果根据说明书服用,这种药是没有副作用的。
(2)You mustn’t touch it unless ________________________. (ask) 你不许碰它,
除非别人叫你做。
(3) If _______________________,the experiment will be successful. (do)
   如果仔细做的话,这个实验会成功的。
(4) He opened his lips as if ________________________ . (say)  他张开嘴,好
   像要说什么。

(5)  English words  are easily  forgotten unless  _________________________. 
   (repeat) 
   英语单词不经常重复是很容易忘记的。 
2.【教材原句】

(1)  Some byproducts of  this process are  called “greenhouse”    gases, the 
most important one of 
   which is carbon dioxide.
(2) It will encourage a greater range of animal---- all of which will make 
   life for human beings better.
【结构归纳】以上各句都包含有一个由________________+ of + ___________ 引导的
                   中国现代教育网    www.30edu.com  全国最大教师交流平台

_____________________。Which  分别指代________________和________________。
【操练巩固】

(1) I have many friends, ______________________ are businessmen.  (some)  
   我有很多朋友,有些是做生意的。

(2)  The  factory  produces  half  a  million pairs  of  shoes  every  year, 
_____________________________________________. (sell)
   这个工厂每年生产         50 万双鞋子,80%在国外销售。

(3)  There  are two  buildings,  __________________________nearly a  hundred 
feet hight. (stand)有两栋建筑,较大的那一个有一百英尺高

(4)The  football  team has  15 members,  __________________________________. 
(old)足球队有     15 名成员,最大的有        25 岁。

四.反馈拓展
      There is no ______ that the earth is becoming __________ and that it 
is ______ ________ that has caused this global warming rather than a random 
but natural ______________. All scientists __________ ______ the view that 
the  increase in  the earth’s  _____________  is because  of the burning  of 
_______  _______ like  coal,  natural gases  and oil  to produce  _________. 
However,  the ________  towards this rise  are completely  ___________. Some 
believe  that the effects  would be __________,  while others think  that we 
should not _______ _______ it.
【作业】

       完成课时训练


【学习反思】

      1. 你这节课主动回答了几次问题?
      2. 你本节课的收获是什么?
      3. 你本节课还有什么疑问?
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